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Abstract

The cartridge-presence sensor is used to ensure that a tape cartridge tray in the loader will not be lowered without carrying the tape cartridge with the loader tray.

Country

United States

Language

English (United States)

This text was extracted from an ASCII text file.

This is the abbreviated version, containing approximately
91% of the total text.

Tape Cartridge Loader with Cartridge Presence Sensing

The
cartridge-presence sensor is used to ensure that a tape
cartridge tray in the loader will not be lowered without carrying the
tape cartridge with the loader tray.

This
invention utilizes a VCR-like type of manual loader and
apply it for automatic robotic loading, we introduced a sensing
scheme that is the Cartridge present sensor.

In a manual
load situation, the tape cartridge is being
inserted and first opens the loader door and triggers the door open
sensor. As the cartridge travels further
in, it triggers the tray up
sensor, which in turn, lets the motor to know that it is ready to
load. In other words, the loader tray is
ready to translate linearly
in then down. While the loader tray is
being moved down, it carries
with it the tape cartridge, since at this time the hand has let go of
the cartridge.

However, in
an automatic loading situation, the Data Server
picker arm may not let go of the cartridge, even when the loader tray
is all set to go. The tug-of-war
situation is solved by the use of a
cartridge present sensor located at the end of the loader tray. This
sensor performs the function of getting the cartridge and the loader
tray to load together; one can not go without the other. The picker
has to let go before the cartridge can be lowered or loaded. The
cartridge's present sensor also acts as a feed-complete sensor. The
loader tray will not be lower...